text: """Exposes functionality for adding tasks to halfling."""
  
  from collections import namedtuple
  
  _Task = namedtuple("_Task", ["run", "setup_args"])
  _tasks = {}
  
  
  def add_task(name, run_func, setup_args_func=None):
      """Add a task to halfling.
  
      Args:
          name (str): Name to be used to run the task from the halfling CLI.
          run_func (Callable[argparse.Namespace]): Function to be called by task; receives parsed
              CLI args.
          setup_args_func (Callable[argparse.ArgumentParser]): Function to add arguments to the
              provided parser; optional.
      """
      _tasks[name] = _Task(run_func, setup_args_func)
  